Abstract
The synthetic oligosaccharides induced tobacco resistance against P. nicotianae and did not inhibit the mycelial growth of the pathogen in vitro. The induced resistance of tobacco plants treated with Lewisx quinquesaccharide or heptasaccharide was related to concentrations used in the range 0-10 μg/mL, treated plants showed the maxium induction efficiency (97.9 %) at 10 μg/mL. The activities of three defense enzymes, polyphenoloxidase, peroxidase and phenylalanine ammoniayase in tobacco plants treated with Lewisx heptasaccharide at 10 μg/mL increased by 70.7%, 150.0% and 142.8%, respectively. The mechanism of the induced resistance is discussed.
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Claims 7
Claim · model-written summary
Synthetic oligosaccharides induced tobacco resistance to P. nicotianae.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- synthetic oligosaccharidese0
- Interactor
- P. nicotianae
Phytophthora nicotianaee0pathogen - Outcome
- resistance against P. nicotianaee0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The synthetic oligosaccharides induced tobacco resistance against P. nicotianae”
Claim · model-written summary
Synthetic oligosaccharides did not inhibit pathogen mycelial growth in vitro.
- Taxon
- tobaccoNicotiana tabacumt0
- Interactor
- Phytophthora nicotianaePhytophthora nicotianaet0pathogen
- Outcome
- mycelial growth of the pathogene0
- Direction
- did not inhibite0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“did not inhibit the mycelial growth of the pathogen in vitro”
t0“tobacco to Phytophthora nicotianae”
Claim · model-written summary
Induction of tobacco resistance by Lewisx quinquesaccharide or heptasaccharide was related to concentration from 0 to 10 μg/mL.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Lewisx quinquesaccharide or heptasaccharidee0
- Outcome
- induced resistancee0
- Qualifier
- 0-10 μg/mLe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The induced resistance of tobacco plants treated with Lewisx quinquesaccharide or heptasaccharide was related to concentrations used in the range 0-10 μg/mL”
Claim · model-written summary
At 10 μg/mL, treated tobacco reached maximum induction efficiency of 97.9%.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- 10 μg/mLe0
- Outcome
- induction efficiencye0
- Direction
- maxiume0
- Value
- 97.9 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treated plants showed the maxium induction efficiency (97.9 %) at 10 μg/mL”
t0“tobacco”
Claim · model-written summary
Lewisx heptasaccharide increased tobacco polyphenoloxidase activity by 70.7%.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Lewisx heptasaccharide at 10 μg/mLe0
- Gene
- polyphenoloxidasee0
- Outcome
- activities of three defense enzymese0
- Direction
- increasede0
- Value
- 70.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of three defense enzymes, polyphenoloxidase, peroxidase and phenylalanine ammoniayase in tobacco plants treated with Lewisx heptasaccharide at 10 μg/mL increased by 70.7%, 150.0% and 142.8%, respectively.”
Claim · model-written summary
Lewisx heptasaccharide increased tobacco peroxidase activity by 150.0%.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Lewisx heptasaccharide at 10 μg/mLe0
- Gene
- peroxidasee0
- Outcome
- activities of three defense enzymese0
- Direction
- increasede0
- Value
- 150.0%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of three defense enzymes, polyphenoloxidase, peroxidase and phenylalanine ammoniayase in tobacco plants treated with Lewisx heptasaccharide at 10 μg/mL increased by 70.7%, 150.0% and 142.8%, respectively.”
Claim · model-written summary
Lewisx heptasaccharide increased tobacco phenylalanine ammoniayase activity by 142.8%.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Lewisx heptasaccharide at 10 μg/mLe0
- Gene
- phenylalanine ammoniayasee0
- Outcome
- activities of three defense enzymese0
- Direction
- increasede0
- Value
- 142.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of three defense enzymes, polyphenoloxidase, peroxidase and phenylalanine ammoniayase in tobacco plants treated with Lewisx heptasaccharide at 10 μg/mL increased by 70.7%, 150.0% and 142.8%, respectively.”
The same questions in other papers
oligosaccharide · Phytophthora nicotianae · Nicotiana tabacum (tobacco)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.